<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <title>电流攻击，滋滋</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css" />
    <style>
        html,
        body {
            margin: 0;
            padding: 0;
            height: 100dvh;
            width: 100dvw;
            overflow: hidden;
            background: black;
            display: grid;
            place-items: center;
            position: relative;
        }
    </style>
</head>

<body>
    <canvas id="canvas"></canvas>
    <script>const ctx = canvas.getContext('2d'); const pointsCount = 5000; let centerX; let centerY; let points = []; let pos; const updateSize = () => { canvas.width = window.innerWidth; canvas.height = window.innerHeight; centerX = canvas.width / 2; centerY = canvas.height / 2; ctx.fillStyle = 'black'; ctx.fillRect(0, 0, canvas.width, canvas.height); pos = { x: 0, y: centerY }; points = new Array(pointsCount).fill(0).map(() => ({ x: 0, y: centerY, })) }; updateSize(); window.addEventListener('resize', updateSize); function random(min, max) { const minCeiled = Math.ceil(min); const maxFloored = Math.floor(max); return Math.floor(Math.random() * (maxFloored - minCeiled + 1) + minCeiled) } const draw = () => { ctx.fillStyle = 'rgba(10,10,10,.2)'; ctx.fillRect(0, 0, canvas.width, canvas.height); points.forEach((point, index) => { if (index % pointsCount === 2) { pos = { x: 0, y: centerY }; points = new Array(pointsCount).fill(0).map(() => ({ x: 0, y: centerY, })) } pos.x += Math.floor(Math.random() * 2); pos.y += random(-1, 1); ctx.fillStyle = `hsla(${index * 0.06 + 145},100%,50%,1)`; ctx.fillRect(pos.x, pos.y, 2, 2) }); requestAnimationFrame(draw) }; draw();</script>
</body>

</html>